there are keys for North and Hillard composition books but I have never seen a key for Hillard and Botting. If it does exists, your best bet is to search UK and Australian resources since these books were primarily used in there.

there are keys for North and Hillard composition books but I have never seen a key for Hillard and Botting. If it does exists, your best bet is to search UK and Australian resources since these books were primarily used in those markets.

But of course those old keys are almost only from English to Greek, rarely from Greek to English. Maybe they considered the latter unnecessary. So there wouldn't be a Key to 'Elementary Greek Translation' would there...?